RU2348988C2 - Carrier for information storage and record/playback device, and method using them - Google Patents

Abstract

FIELD: physics, computer facilities.

SUBSTANCE: carrier for information storage, and also the device of record/playback and an method of record/playback of this carrier are offered. The carrier includes: field for a data recording of tangentially preset function, for example, protection from the record applied to it. The information of tangentially preset function includes the special information which can be used the device supporting in advance preset function, and the general information which can be used the device not supporting preset function. The blanket information depends on the special information. Thus possibility of use of preset function is provided with the devices which are not supporting this function.

EFFECT: possibility of using a preset function by the devices which are not supporting this function.

27 cl, 10 dwg

Description

Technical field

An aspect of the present invention relates to a medium for storing information, and more particularly, to a medium for storing information that can improve compatibility, and a recording / reproducing device and method using them.

State of the art

Since the standards for optical systems, including optical disc storage and optical discs, were originally set, new features were often added to optical systems thanks to developments in optical discs and semiconductor technology. Therefore, it is necessary to update the originally established standards.

Figure 1 is a reference diagram illustrating a problem according to the prior art.

Referring to FIG. 1, we will see that the ordinary standard is called the “old standard”, and the standard, updated by adding new features to the old standard, is called the “new standard”. So, the disk 12 of the old standard operates in the drive 11 of the old standard, and the disk 14 of the new standard operates in the drive 13 of the new standard.

The old standard and the new standard may or may not have recording / playback compatibility due to new features added. If the two standards have recording / reproducing compatibility, then the old standard disc 12 can be recorded / reproduced in the new standard drive 13, and that new standard disc 14 can be recorded / reproduced in the old standard drive 11.

To ensure recording / playback compatibility between the old standard and the new standard, when the new standard disc 14 with the new functions is loaded into the old standard drive 11, the old standard drive 11 needs to recognize the new functions. To accomplish this when the old standard is being established, the proper procedure must be set to add new features. This countermeasure should be equally applicable to any new standard when new features are added.

Disclosure of invention

Technical problem

For a number of standards, in order to maintain recording / playback compatibility, the addition of new features should be considered when the original standard is established. To accomplish this, you need to determine the rule by which this drive must function according to the functions covered by the current standard, and the rule by which this drive must function according to the functions that need to be added in the future, which are not covered by the current standard. That is, when a new standard is established by adding new functions to the current standard, if the drive according to the new standard saves to the disk the action that the drive according to the current standard must perform in accordance with the new functions, even if the new disk to which the new functions are added is loaded to the drive according to the current standard, the drive according to the current standard can read the information stored on the new disk and perform an action in accordance with the new functions. In other words, what is needed is a method according to which a drive according to the new standard can tell the drive according to the current standard how to work with a new disk to which new functions are added, even if the drive according to the current standard does not know that there are new functions added to the new standard.

Technical solution

According to an aspect of the present invention, there is provided a storage medium that can improve disk compatibility in drives operating according to different standards, and a recording / reproducing apparatus and method using them.

Useful Results

According to embodiments of the present invention, a recording / reproducing apparatus that cannot recognize a predetermined function can correctly use a medium to which a predetermined function is applied. Thus, disc compatibility in recording / reproducing apparatuses having different standards can be improved.

Description of drawings

1 is a reference diagram illustrating a problem according to the prior art;

FIG. 2 is a reference diagram for explaining a disc operation method according to an embodiment of the present invention; FIG.

3 is a disk structure according to an embodiment of the present invention;

Figure 4 is an illustration of a detailed structure of a defect management area (DMA) illustrated in Figure 3;

5 is a detailed structure of an access control area illustrated in FIG. 3;

6A is an illustration of access control (ACD) data for write protection set to a write protection state according to an embodiment of the present invention;

6B is an illustration of an ACD for write protection set to an unlock state of write protection according to an embodiment of the present invention;

7A is an illustration of an ACD for read protection set to a read protection state according to an embodiment of the present invention;

FIG. 7B is an illustration of read-protection ACDs set to a read-protection unlock state according to an embodiment of the present invention; FIG.

Fig. 8 is a block diagram of a disc recording / reproducing apparatus according to an embodiment of the present invention;

Fig. 9 is a flowchart for explaining a disc operation in a recording / reproducing apparatus that can recognize function A, according to an embodiment of the present invention; and

10 is a flowchart for explaining a disc operation in a recording / reproducing apparatus that cannot recognize function A, according to an embodiment of the present invention.

Best option exercise

According to another aspect of the present invention, there is provided an information storage medium that is assigned an area for recording information regarding a predetermined function applied to it, where information regarding the predetermined function includes specific information in which the established information regarding the predetermined function is set by the recording device / playback, which can recognize a predefined function, and general information installed devices A recording / reproducing apparatus that can recognize a predetermined function based on corresponding information depending on the set information, so that a recording / reproducing apparatus that cannot recognize a predetermined function can use a predetermined function.

According to an aspect of the present invention, information regarding a predetermined function may include access control data (ACD).

According to an aspect of the present invention, specific information may include higher presentation information, and general information may include lower presentation information.

According to another aspect of the present invention, there is provided a storage medium for information that is assigned an access control area for recording access control data (ACD) including general information such that a recording / reproducing apparatus that cannot recognize a predetermined function applied to the medium for storing information, can control access to a storage medium for information, where general information is based on relevant information, depending on the installed information Note on a predefined function applied to the media.

According to an aspect of the present invention, ACDs may further include specific information including set information set by a recording / reproducing apparatus that recognizes a predetermined function.

According to an aspect of the present invention, a predetermined function may be a write protection function, specific information may be information about a write protection state, and general information may include at least one of recordability information of the defect management area, writeability information of the spare area and recordability information of the user data area.

According to an aspect of the present invention, if the write protection state information in the specific information is set to the write protection state, then at least one of the writeability information of the defect management area, the writeability information of the spare area, and the writeability information of the user data area in the general information can be set to an unrecordable state, and if information about the write protection status in the specific information is set to unlock protection status If, at least one of the recordability information of the defect management area, the recordability information of the spare area, and the recordability information of the user data area in the general information can be set to a recordable state.

According to an aspect of the present invention, a predetermined function may be a read protection function, specific information may be read protection status information, and general information may include reproducibility information of a user data area.

According to an aspect of the present invention, if the read protection state information in the specific information is set to the read protection state, the reproducibility information of the user data area in the general information can be set to an irreproducible state, and if the read protection state information in the specific information is set to the unlock state of read protection, then the reproducibility information of the user data area in the general information can be set to play driven condition.

According to another aspect of the present invention, there is provided a recording / reproducing apparatus including a recording / reading unit, recording data or reading data from an information storage medium having an designated area for recording information regarding a predetermined function applied to it; and a controller controlling the recording / reading unit for recording in this area of specific information that includes the set information regarding the pre-set function and general information based on the corresponding information depending on the set information, so that the recording / reproducing device that cannot recognize preset function, can use a preset function.

According to another aspect of the present invention, there is provided a recording / reproducing apparatus including a recording / reading unit, recording data or reading data from an information storage medium having an access control area designated for recording access control data (ACD) including a common information, so that a recording / reproducing device that cannot recognize a predetermined function applied to the information storage medium can control access to the medium for information storage; and a controller controlling the recording / reading unit for setting general information based on the corresponding information depending on the set information regarding a predetermined function applied to the information storage medium and recording the set general information on the information storage medium.

According to another aspect of the present invention, there is provided a recording / reproducing method comprising recording data or reading data from an information storage medium having a designated area for recording information regarding a predetermined function applied to it; and recording in this area specific information that includes the set information regarding the predetermined function and the general information established based on the corresponding information depending on the set information, so that the recording / reproducing device that cannot recognize the predetermined function can use preset function.

According to another aspect of the present invention, there is provided a recording / reproducing method comprising recording data or reading data from an information storage medium having an access control area designated for recording access control data (ACD) including general information set forth as that a recording / reproducing device that cannot recognize a predetermined function applied to the information storage medium can control access to the information storage medium tion; and setting general information based on relevant information depending on the set information regarding a predetermined function applied to the medium.

Embodiment for Invention

A detailed reference will now be made to the available embodiments of the present invention, examples of which are illustrated in the accompanying drawings, in which like reference numerals refer to like elements throughout the description. Embodiments are described below to explain the present invention with reference to the drawings.

2 is a reference diagram for explaining a disc operation method according to an embodiment of the present invention.

Referring to FIG. 2, we see that in order for a drive that cannot recognize function A to work correctly with drive 100 with function A, the set information for using function A is written to drive 100, and information corresponding to the set information included in general information that can be recognized by a drive that cannot recognize function A is recorded on disk 100.

On a storage medium according to an embodiment of the present invention, i.e. on the disk 100, an access control area is assigned to record access control data (ACD) including a general information field in which information is stored, so that a recording / reproducing device that cannot recognize a predetermined function of the medium can control access to the medium , and a specific information field in which the set information is stored regarding a predetermined function of the recording / reproducing apparatus that can recognize the predetermined function. In the general information field, part or all of the set information is determined by the value of the information field limited to a predetermined function for the recording / reproducing device that can recognize a predetermined function applied to the medium, so that the recording / reproducing device that cannot recognize the predetermined function applied to the medium can properly control the medium.

In other words, the value is set to the special information field for the recording / reproducing device, which can recognize the predefined function of the medium according to the intention of the user (manufacturer of the drive, recording and / or reproducing application, file system mechanism, instruction set, or end user) using the predefined function and the value is set to the general information field to match the set value of the special information field for the recording / reproducing device A feature that cannot recognize a predefined media function. The value setting is performed by a recording / reproducing device that can recognize a preset function of the medium.

In other words, if the value of the higher presentation information (the set value of the specific information) is set according to the intended use of the medium by the user, then the value of the lower presentation information (the set value of the general information) is determined in accordance with the value of the higher presentation information, i.e. Intentional use of the media by the user.

Figure 3 - structure of the disk 100, according to a variant implementation of the present invention.

Referring to FIG. 3, we see that the disk 100 includes a start area 110, a data area 120, and an end area 130 that are arranged in series.

The start area 110 includes a pre-recorded area 111, which is used only for playback, since the pre-set data is recorded in the production of the disc 100, and a recording area 112 in which data can be recorded and changed.

The data area 120 includes a backup area # 1 121, a user data area 122, and a backup area # 2 123. The user data area 122 is an area in which user data is recorded. The spare area # 1 121 and the spare area # 2 123 are areas in which replacement blocks are recorded to replace defective blocks formed in the user data area 122. These spare areas 121 and 123 are allocated in the data area 120 when the disk 100 is initialized or reinitialized.

The end region 130 may include a defect management area (DMA), etc.

In the pre-recorded area 111, disc information is recorded in advance when the disc 100 is produced. The pre-recorded area 111 is called the control data area 113, since control data is recorded there, including disk identification (ID), for example, a registration number of the disk, for identifying the disk 100.

The recording area 112 includes a DMA 114, a test area 115, a drive / disk status information area 116, and an access control area 117.

DMA 114 is an area in which information about defects formed in the user data area 122 is recorded. DMA 114 will later be described in detail with reference to FIG. 4.

Test area 115 is an area in which recording power can be tested so that data can be recorded to disc 100 with an optimal recording condition.

The drive / disk state information area 116 is an area in which the state information of the drive and the disk 100 is recorded.

The access control area 117 is an area for recording information regarding the operation of the drive in relation to a new function to be added. That is, the access control area 117 is an area in which specific information is recorded including set information regarding a predetermined function and general information that allows access to the drive disk 100, which cannot recognize the predetermined function. The access control area 117 will later be described in detail with reference to FIG.

Figure 4 is a detailed structure of the DMA 114 illustrated in Figure 3.

Referring to FIG. 4, it will be seen that DMA 114 includes a disc definition structure (DDS) 410 and a defect list (DFL) 420.

DFL 420 contains information about defects detected in the user data area 122. For example, DFL 420 includes address information of defective blocks detected in user data area 122, address information of replacement blocks replacing defective blocks, and defect status information.

DDS 410 contains disk management information. That is, the DDS 410 includes information about the size of the spare areas 121 and 123, information about the start and end address of the user data area 122, and in particular, information about the status of the access control data (ACD) 411, and all of them are recorded when the disc 100 is initialized or reinitialized.

The ACD state information 411 includes information about recording states or defect states of ACD blocks recorded in the access control area 117. ACDs can be effectively managed by recording the status information of ACDs in the DDS 410. When ACDs are played back, if the disk 100 is loaded into the drive, the drive can obtain locations where the correct ACDs are written from the status information of each ACDs stored in the DDS 410, and play the correct ACD blocks.

5 is a detailed structure of an access control area 117 illustrated in FIG. 3.

Referring to FIG. 5, we see that the access control area 117 includes ACD # 1, ACD # 2, ACD # 3, etc.

Each ACD includes general information that can be recognized by drives according to the regular standard and drives by the new standard, obtained by adding a new function to the regular standard to access drive 100, and special information that can only be recognized by drives that can recognize function corresponding ACD.

In other words, ACD # 1 includes specific information and general information with respect to “function 1”, ACD # 2 includes specific information and general information with respect to “function 2” and ACD # 3 includes specific information and general information in relation to "function 3". Here, for example, “function 1” can be a function that can be recognized by the drive, and “function 2” and “function 3” can be functions that cannot be recognized by the drive.

ACD # 1 500 includes general information 510 and specific information 520.

General information 510 includes ACD_ID 511, which is an identifier for identifying ACDs, DMA writability information 512 indicating whether data can be written to DMA 114 other than DDS 410, backup area writability information 513 indicating whether data can be written to spare areas 121 and 123, and information 514 on the recordable / reproducible user data area indicating whether data can be recorded or reproduced from the user data area 122.

The drive can determine whether ACD # 1 500 relates to a recognized function or an unrecognized function by checking ACD_ID 511. That is, if ACD_ID 511 is an identifier that the drive already knows, then ACD # 1 500 refers to a function that the drive can recognize, and if ACD_ID 511 is an identifier that the drive does not know, then ACD # 1 500 refers to a function that the drive cannot recognize.

Even if the drive does not know ACD_ID 511, the drive can perform an appropriate action with respect to a function that the drive cannot recognize by reading the contents stored in the general information 510.

Specific information 520 includes function-related information 521 in ACD # 1,500. Function-related information 521 includes set information, for example, values set by a user, a file system mechanism, a predefined recording / playback application, a drive manufacturer, or a set of instructions , to use the ACD # 1,500 function as necessary. Since the type, size or quantity of function-related information 521 is determined in accordance with the function, the information field of the function-related information 521 may not always have the same size, in contrast to the general information field.

A recording / reproducing apparatus that can recognize a predetermined function sets the information regarding the predetermined function in accordance with the method specified by the specific ACD information related to the function, and sets the corresponding information depending on the set information included in the specific information or corresponding to the set information, an equal part or all of the general information. Then, since the recording / reproducing device that cannot recognize the predetermined function can obtain from the general information the corresponding information depending on the specific information, although the device cannot recognize the specific ACD information, the device can receive information by which it is possible to work with the medium corresponding to the function, even if the function cannot be recognized.

That is, an ACD related to a predetermined function includes specific information and general information, where specific information is set for a recording / reproducing apparatus that can recognize a predetermined function to perform an operation related to a predetermined function, and general information is set for a recording / reproducing device that cannot recognize a predetermined function in order to perform an operation corresponding to a predetermined function.

The ACDs corresponding to each function are written to the medium or used only with respect to functions that can be recognized by the recording / reproducing device when the medium is initialized / reinitialized or when the function is used.

6A and 6B are diagrams illustrating set information included in an ACD when a predetermined function is a write protection function. The write protection function is a function by which data is not recorded in some areas of the medium, the entire area of the medium, or the area of user data.

6A is an illustration of an ACD 600 for write protection set to a write protection state according to an embodiment of the present invention.

A recording / reproducing apparatus that recognizes a write protection function may use the medium by applying the write protection function to the medium. When the user intends to set the media user data area to the write protection state, the recording / reproducing apparatus that recognizes the write protection function sets the write protection flag 621 of the specific information 620 in the ACD (ACD # 1) 600 write protection to the protection state from recording, as illustrated in FIG. 6A. In addition, for recording / reproducing devices that cannot recognize the write protection function, the recording / reproducing device that recognizes the write protection function sets at least one of the information fields related to recording the user data area from the general information 610 ACD 600 write protection, for example, information 612 about the writability of DMA (except DDS), information 613 about the writability of the spare area and information 614 about the writability of the user data area, in an unrecordable state, as illustrated in FIG. 6A.

On the information storage medium for which defect management is performed by the drive, if a defect is detected when data is written to the user data area, the spare area is assigned to the replacement area, and DMA is assigned for defect management information indicating the status of the replacement, and information related to to disc recording and DDS. As a result, the write protection of the user data area relates to DMA and write protection of the spare area. In addition, DDS is excluded from the DMA since ACD status information is stored in the DDS. That is, if the DDS is in a write-protected state, then changing the status information due to updating the ACD cannot affect the DDS. If the status information of the area in which the ACD is recorded is not stored in the DDS, then the writable information of the DMA can freely use DDS without exception. In the case of a write-once medium for storing information, the DMA corresponds to a temporary defect management area (TDMA), and the DDS corresponds to information about a temporary disc definition structure (TDDS).

6B is an illustration of an ACD 600 for write protection set to an unlock state of write protection according to an embodiment of the present invention.

When the user intends to unlock the write protection state of the medium, the recording / reproducing device that recognizes the write protection function sets the write protection flag 621 in the specific information 620 in the write protection ACD 600 to the write protection unlock state, as illustrated in FIG. 6B. In addition, for recording / reproducing devices that cannot recognize the write protection function, the recording / reproducing device that recognizes the write protection function sets at least one of the information fields related to recording the user data area from the general information 610 ACD 600 write protection, for example, information 612 about the writability of the DMA (except DDS), information 613 about the writability of the spare area and information 614 about the writability of the user data area, in the recording state, as illustrated in Fig.6B. By doing this, even if in the future this medium is loaded into a recording / reproducing device that cannot recognize the write protection function, the medium can be used in accordance with the write protection function provided to the medium by accessing general information 610 in the ACD 600 protection from the record.

In other words, if the write protection state is set, then the DMA (except for DDS), the spare area and user data area are set to an unrecordable state, and if the write protection unlock state is set, then the DMA (except for DDS), the spare area and user data area set to recordable state. By doing this, recording / reproducing devices that cannot recognize the write protection function can also use a medium that uses write protection ACDs in accordance with the original purpose, thereby increasing media efficiency.

7A and 7B are diagrams illustrating set information included in an ACD when a predetermined function is a read protection function. The read protection function is a function by which data from certain areas of the medium, the entire area of the medium, or the area of user data is prevented from being reproduced.

7A is an illustration of an ACD 700 for read protection set to a read protection state according to an embodiment of the present invention.

A recording / reproducing apparatus that recognizes a read protection function may use the medium by applying the read protection function to the medium. When the user intends to set the media user data area to a read-protect state, the recorder / player that recognizes the read-protect function sets the read-protect flag 721 in the specific information 720 in the ACD (ACD # 1) 700 of the read-protect to the protect-state from reading, as illustrated in FIG. 7A. In addition, for recording / reproducing devices that cannot recognize the read protection function, the recording / reproducing device that recognizes the read protection function sets at least one of the information fields related to reproducing the user data area from the general information 710 Read-protection ACD 700, for example, information 712 about a recordable / reproducible area of user data, in a non-reproducible state, as illustrated in FIG. 7A.

7B is an illustration of an ACD 700 for read protection set to an unlock state of read protection according to an embodiment of the present invention.

When the user intends to unlock the read protection state set to the medium, the recording / reproducing apparatus that recognizes the read protection function sets the read protection flag 721 in the specific information 720 of the read protection ACD 700 to the read protection unlock state, as illustrated in Figv. In addition, for recording / reproducing devices that cannot recognize the read protection function, the recording / reproducing device that recognizes the read protection function sets at least one of the information fields related to reproducing the user data area from the general information 710 A read-protection ACD 700, for example, information 712 about a recordable / reproducible area of user data, in a reproducible state, as illustrated in Fig. 7B. By doing this, even if in the future this medium is loaded into a recording / reproducing apparatus that cannot recognize the read protection function, the medium can be used in accordance with the read protection function provided to the medium by accessing general information 710 in the security ACD 700 from reading.

In other words, if the read protection state is set, then the user data area is set to an irreproducible state, and if the read protection unlock state is set, the user data area is set to a reproducible state. By doing this, recording / reproducing devices that cannot recognize the read protection function can also use a medium that uses read protection ACDs in accordance with the original purpose, thereby increasing media efficiency.

Fig. 8 is a block diagram of a disc recording / reproducing apparatus according to an embodiment of the present invention.

Referring to FIG. 8, we see that the recording / reproducing apparatus includes a recording / reading unit 2 and a controller 1.

The write / read unit 2 writes data to a disk 100, which is an optical medium for storing information according to the present invention, and reads data recorded on the disk 100 using a reader. In particular, when the controller 1 generates or modifies ACDs related to a function known to the controller 1, the controller 1 assigns information regarding the specific information function in the ACD and also assigns corresponding information depending on the set information, general information in the ACD for recording / reproducing devices, which cannot recognize the function.

Controller 1 includes a system controller 10, a host interface (I / F) 20, a digital signal processor 30 (DSP), a radio frequency amplifier 40 (RF AMP), and a servo mechanism 50.

In the write operation, the host I / F 20 receives a predetermined write command from the host 3 and transmits it to the system controller 10. The system controller 10 controls the DSP 30 and the servo mechanism 50 to execute the write command received from the host I / F 20. The DSP 30 adds additional information, such as error correction parity bits, to the recording data that is received from the host I / F 20, generates an error correction code (ECC) block by encoding from ECC to the data, and modulates the generated ECC block with a predefined way. The RF AMP 40 converts the data output from the DSP 30 into an RF signal. The write / read unit 2, including a reader, writes to the disk 100 an RF signal output from the RF AMP 40. The servo mechanism 50 receives the command necessary for servo control from the system controller 10 and controls the reader of the write / read unit 2. In particular, according to embodiments of the present invention, when the system controller 10 establishes set information regarding a function known to the system controller 10, the system controller 10 controls the ACD so that recording / reproducing devices that cannot recognize the function can also work with the disc 100 For example, when the system controller 10 applies the write protection function to the disk 100, if the system controller 10 sets the write protection flag of the specific ACD information to the protect state From the recording, the system controller 10 also sets the information regarding some areas or the entire area of the disc 100 in the general information to a non-recordable state.

In the reproduction operation, after the host I / F 20 receives the reproduction command from the host 3, the system controller 10 performs initialization for reproduction. The write / read unit 2 emits a laser beam to the disk 100 and outputs an optical signal obtained by receiving the laser beam reflected from the disk 100. RF AMP 40 converts the optical signal output from the write / read unit 2 into an RF signal, delivers modulated data, obtained from the RF signal to the DSP 30 and delivers a servo control signal obtained from the RF signal to the servo mechanism 50. The DSP 30 demodulates the modulated data and outputs the data obtained by correcting the ECC errors. The servo mechanism 50 controls the reader based on the servo control signal received from the RF AMP 40 and the command necessary for servo control received from the system controller 10. Then, the host I / F 20 transmits the data received from the DSP 30 to the host 3. The system controller 10 controls by the servo mechanism 50 (write / read unit 2) to read specific information in the ACD recorded in the access control area of the disk 100 to obtain set information related to a function known to the system controller 10 and controls the servo mechanism 50 (b read / write lock 2) to read the general information in the ACD recorded in the access control area of the disk 100 to obtain set information related to a function unknown to the system controller 10.

The recording / reproducing apparatus illustrated in FIG. 8 may be implemented using separate recording and reproducing apparatuses or a single recording / reproducing apparatus.

FIG. 9 is a flowchart for explaining a disc operation in a recording / reproducing apparatus that can recognize function A, according to an embodiment of the present invention.

Referring to FIG. 9, we see that the disk is loaded into a drive that recognizes function A in step 910.

When a user intends to apply function A to a loaded disc, the drive writes the set information related to function A to the ACD specific information field in the disc access control area in step 920. For example, if function A is a write-protect function, then the set information related to to function A may be a write-protect state or a write-protect unlock state, and if function A is a read-protect function, then the established information relating to function A may be by reading protection status or by reading protection unlock status.

The drive records information corresponding to the set information related to function A in the ACD general information field in the disc access control area for recording / reproducing devices that cannot recognize function A in step 930. For example, if the set information related to function A is a write protection state, then the general information field can be set to an unwritable state in relation to some areas or the entire area of the disk, and if the set information related to fu If function A is a read-protection state, then the general information field can be set to an irreproducible state with respect to some areas or the entire area of the disk.

The drive uses the disk in accordance with the set information related to function A recorded in the special information field in step 940. For example, if the set information related to function A is a write-protected state, data is not written to the disk, and if the set information related to function A is a read-protection state, data reading from the disk is prevented.

10 is a flowchart for explaining a disc operation in a recording / reproducing apparatus that cannot recognize function A, according to an embodiment of the present invention.

Referring to FIG. 10, we see that the disk is loaded into a drive that cannot recognize function A in step 1010.

The drive reads the corresponding information, depending on the set information related to function A, from the general ACD information field in the disk access control area in act 1020.

The drive uses the drive in accordance with function A by accessing the read relevant information in act 1030.

The present invention is not limited to the embodiments described above. For example, the information structure of a predetermined function may be constructed from information of a higher representation and information of a lower representation. Subject, i.e. a recording / reproducing apparatus capable of performing a predetermined function manages the higher presentation information to use the storage medium by applying the predetermined function to the medium, and also sets the lower presentation information so that an object that does not allow the execution of the predetermined function , could use a medium to which a predetermined function is applied by accessing information of a higher representation .

Embodiments of the present invention may be recorded as computer programs and may be implemented in general purpose digital computers that execute programs using a computer-readable recording medium. Examples of computer-readable recording media include magnetic storage media (e.g., ROM (read only memory), floppy disks, hard drives, etc.), optical recording media (e.g., CD-ROM (compact discs), DVD ( universal digital discs), etc.), and a storage medium such as carriers (e.g., transmission over the Internet). The computer-readable recording medium may also be distributed over network-connected computing systems, so that the computer-readable code is stored and executed in a distributed manner. And functional programs, codes, and code segments for implementing the present invention can be easily interpreted by programmers in the technical field to which the present invention relates.

Although this invention has been shown and described in detail with reference to its preferred embodiments, those skilled in the art will understand that various changes in form and content can be made without departing from the spirit and scope of the invention as defined by the appended claims. . The above embodiments should be considered only in a descriptive sense, and not for purposes of limitation. Therefore, the scope of the invention is determined not by a detailed description of the invention, but by the appended claims, and all differences in scope should be construed as being included in the present invention.

Claims (27)

An information storage medium comprising: a designated area for recording information regarding a predetermined function, the information regarding the predetermined function includes specific information and general information set by the recording / reproducing device capable of recognizing the predetermined function, the particular information including set information regarding a predefined function, and general information includes relevant information depending t the set information so that a recording / reproducing apparatus incapable of recognizing the predetermined function is capable of performing the predetermined function. 2. The medium of claim 1, wherein the information regarding the predetermined function comprises access control data (ACD). 3. The medium of claim 1, wherein the specific information contains information of a higher representation, and the general information contains information of a lower representation. 4. An information storage medium comprising an assigned access control area for recording access control data (ACD) containing general information set so that a recording / reproducing apparatus that does not recognize a predetermined function applied to the information storage medium controls access to a storage medium, moreover, the general information is established based on the relevant information depending on the installed information regarding a predetermined function, approx. connected to the storage medium. 5. The medium of claim 4, wherein the ACDs further comprise specific information containing set information set by a recording / reproducing device that recognizes a predetermined function. 6. The storage medium of claim 5, wherein the predetermined function is a write protection function, the specific information is information about the write protection status, and the general information contains at least one of recordability information of the defect management area, recordability information of the spare area and recordability information of the user data area. 7. The medium according to claim 6, in which if the information about the write protection state in the specific information is set to the write protection state, then at least one of the recordability information of the defect management area, the recordability information of the spare area and the recordability information the user data area in the general information is set to an unrecordable state, and if the write protection status information in the specific information is set to the write protection unlock state, then at least Not one of the recording information of the defect management area, the recording information of the spare area, and the recording information of the user data area in the general information is set to a recording state. 8. The medium of claim 5, wherein the predefined function is a read protection function, the specific information is information about a read protection state, and the general information contains reproducibility information of a user data area. 9. The medium of claim 8, wherein if the information about the reading protection state in the specific information is set to the reading protection state, then the reproducibility information of the user data area in the general information is set to an irreproducible state, and if the information about the protection status from reading in the specific information is set to the unlock state of read protection, then the reproducibility information of the user data area in the general information is set to the reproducible state. 10. A recording / reproducing apparatus comprising:
a write / read unit that records data and / or reads data from a storage medium containing an designated area for recording information regarding a predetermined function applied to it; and
a controller controlling the recording / reading unit for recording in this area specific information containing set information regarding a predetermined function and general information based on corresponding information depending on the set information, so that another recording / reproducing device that does not recognize the predetermined function , uses a predefined function. 11. The device according to claim 10, in which information regarding a predefined function contains access control data (ACD). 12. The device according to claim 10, in which the specific information contains information of a higher representation, and the general information contains information of a lower representation. 13. A recording / reproducing device, comprising: a recording / reading unit, recording data and / or reading data from an information storage medium containing an designated access control area for recording access control data (ACD) containing general information set so that another a recording / reproducing device that does not recognize a predetermined function applied to the information storage medium controls access to the information storage medium; and a controller controlling a write / read unit for setting general information based on the corresponding information depending on the set information regarding a predetermined function applied to the medium and recording the set general information on the information storage medium. 14. The device according to item 13, in which the ACD further comprise specific information containing the established information. 15. The device according to 14, in which the predefined function is a write protection function,
special information is information about the state of write protection, and
general information includes at least one of the recordability information of the defect management area, the recordability information of the spare area, and the recordability information of the user data area. 16. The device according to clause 15, in which, when the controller sets the information about the write protection status in the specific information to the write protection state, the controller sets at least one of the writeability information of the defect management area, the writeability information of the spare area and information about the writability of the user data area in the general information to an unrecordable state, and when the controller sets the write protection status information in the special information to the unlock protection state you write, the controller sets at least one of the data area recordability defect management information and the spare area recordability information of the user data area recordability information in a total recordable state. 17. The device according to 14, in which the predefined function is a function of reading protection,
special information is read protection status information, and
general information contains reproducibility information for the user data area. 18. The device according to 17, in which, when the controller sets the information about the read-protection state in the specific information to the read-protect state, the controller sets the reproducibility information of the user data area in the general information to an irreproducible state, and
when the controller sets the read protection state information in the specific information to the read protection unlock state, the controller sets the reproducibility information of the user data area in the general information to the reproducible state. 19. The method of recording / playback, comprising stages in which:
write data and / or read data from a storage medium having an designated area for recording information regarding a predetermined function; and
write to the designated area specific information including set information regarding a predetermined function and general information including corresponding information depending on the set information, so that the recording / reproducing apparatus unable to recognize the predetermined function allows the execution of the predetermined function . 20. The method according to claim 19, in which information regarding a predefined function contains access control data (ACD). 21. The method according to claim 19, in which the specific information contains information of a higher representation, and the general information contains information of a lower representation. 22. A recording / reproducing method, comprising the steps of: writing data and / or reading data from an information storage medium having an designated access control area for recording access control data (ACD) containing general information set so that the recording device / playback, which does not recognize a predetermined function applied to the medium, controls access to the medium; and establish general information based on relevant information depending on the installed information regarding a predetermined function applied to the medium. 23. The method of claim 22, wherein the ACDs further comprise specific information indicating set information set by a recording / reproducing apparatus that recognizes a predetermined function. 24. The method of claim 23, wherein the predetermined function is a write protection function,
special information is information about the state of write protection, and
the general information contains at least one of the recordability information of the defect management area, the recordability information of the spare area, and the recordability information of the user data area. 25. The method according to paragraph 24, in which the installation comprises the steps in which:
if the information about the write protection state in the specific information is set to the write protection state, then at least one of the writeability information of the defect management area, the writeability information of the spare area, and the writeability information of the user data area in the general information are set to an unrecordable state; and
if the write protection status information in the specific information is set to the write protection unlock state, then at least one of the writeability information of the defect management area, the writeability information of the spare area, and the writeability information of the user data area in the general information to the write state are set . 26. The method according to item 23, in which the predefined function is a read-protection function,
special information is read protection status information, and
general information contains reproducibility information for the user data area. 27. The method according to p. 26, in which the installation contains stages in which:
if the information about the reading protection state in the specific information is set to the reading protection state, then the reproducibility information of the user data area in the general information is set to an irreproducible state; and
if the information about the reading protection state in the specific information is set to the unlocking state of the reading protection, the reproducibility information of the user data area in the general information is set to the reproducible state.

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